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Efficiency of different forest types in carbon storage depends on their internal structure

100%

Gheorghe I. F., Biris I. A., Valcu C.-M.

Acta Societatis Botanicorum Poloniae

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2010

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tom 79

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nr 4

Forest vegetation is a key factor in the maintenance of global carbon cycle balance under the present climate change conditions. Forest ecosystems are both buffers against extreme climatic events accompanying climate change and carbon sinks diminishing the environmental impact of anthropogenic greenhouse gas emissions. We investigated the influence of stand structure and site characteristics on the productivity and carbon storage capacity of temperate forest types. Predictors of species productivity were parameters such as stand density, age, height, average diameter and wood density. Morus alba (L.) was more productive than average both in terms of annual volume increment and annual biomass gain, while Quercus sessiliflora (Matt.) Lieb. and Quercus frainetto (Ten.) were significantly less productive than average. Differences in stand productivity were explained by stand density, age, height, altitude, type of regeneration and species composition. Statistically significant differences were measured between the productivity of stands dominated by different woody species, with low productive stands dominated by slow growing species with high wood density like Quercus or Fagus, and highly productive stands rich in fast growing species with low wood density like Populus or Salix. Stands with different plant communities in the underlying herbaceous layer also tended to have different levels of productivity.

2

Changes in the silver fir forest vegetation 50 years after cessation of active management

84%

Woziwoda B., Kopec D.

Acta Societatis Botanicorum Poloniae

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2015

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tom 84

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nr 2

Knowledge of the vegetation and the monitoring of its changes in preserved areas is an essential part of effective conservation policy and management. The aim of this study was to assess the effectiveness of traditional methods of conservation of silver fir forests. The study analyses the changes in the structure and species composition of a temperate forest excluded from the commercial silvicultural management for 50 years, and since then protected as a nature reserve. The study is based on a comparative analysis of phytosociological reléves made on permanent plots in 1961, 1982, 1994 and 2011. PCA and ecological indicator values were analyzed, as well as characteristic species based on an indicator value (IndVal) index. Results revealed significant and dynamic changes in the forest structure and composition. The mixed coniferous-broadleaved forest with Abies alba and diverse ground flora, considered in the 1960s as valuable and worthy of conservation, was found to have been anthropogenically transformed and unstable. Significant reduction in the human impact was followed by spontaneous regeneration of oak–hornbeam forest. However, the directional process of changes in vegetation was modified by such silvicultural treatments as selective cutting of trees and gap creation, all intended for silver fir maintenance. The results show that Carpinus betulus effectively outcompeted Pinus sylvestris, Picea abies, Quercus robur and A. alba. Changes in the forest overstory and understory caused temporal changes in the habitat conditions reflected in changes in the ground vegetation composition. The proportion of light-demanding and oligotrophic species significantly decreased, while the contribution of species with a wide ecological amplitude, i.e. more shade-tolerant and nutrient-demanding – increased. The share of A. alba was reduced. Species defined in this study as most valuable, should be actively protected, or selection of conservation targets should be re-evaluated.

3

The spread of Impatiens parviflora DC. in Central European oak forests - another stage of invasion?

84%

Reczynska K., Swierkosz K., Dajdok Z.

Acta Societatis Botanicorum Poloniae

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2015

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tom 84

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nr 4

In this study, we examine the pattern of occurrence of Impatiens parviflora in Central European oak forests over time and its ecological requirements within these types of communities. Research was based on phytosociological data collected in 3776 relevés. A modified TWINSPAN algorithm were used to distinguish the groups of oak forests. The ecological preferences of the I. parviflora and studied communities as well as differences between invaded and non-invaded vegetation plots were analyzed using mean weighted Ellenberg indicator values (EIVs). Finally, both the temporal pattern of I. parviflora participation and changes in its coverage in the studied communities were analyzed. Our study confirmed a high adaptability of this species with respect to temperature, moisture, soil reaction and nutrients and determined its broad ecological optimum in oak forests. However, it also revealed both a greater sensitivity of some communities within Central European oak forests to the invasion of I. parviflora and differences in habitat conditions between invaded and non-invaded vegetation plots. This suggests that the habitat niche of I. parviflora within oak forests is not accidental. The analysis of temporal changes in the frequency of I. parviflora confirmed a 20% increase in relevés over the last 50 years. However, we did not identify any statistically significant rise in the coverage of I. parviflora in oak forests specifically during the studied period.

4

Field-sampling methods for investigating ground-bryophyte populations in forest vegetation

84%

Jiang Y.-B., Liu X.-H., Tian R.-X., Shao X.-M.

Polish Journal of Ecology

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2011

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tom 59

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nr 2

To determine the optimum plot size for bryophyte-biocoenosis investigations and identify the sampling methods that can provide sufficient and representative data for bryophyte diversity, we explored two sampling methods and investigated the species composition and their coverage in three sites located within the subtropical- temperate zone in China: mixed coniferous and deciduous broadleaved forest with species of Quercus, Betula, Pinus, Abies (Guanyinshan Nature Reserve), mixed evergreen and deciduous broadleaved forest, broadleaved forest with species of Phoebe, Castanopsis, Lithocarpus, Acer, Tilia, Dacidia, Abies (Mabian Dafengding Nature Reserve) and temperate deciduous broadleaved forest with species of Quercus, Betula, Populus (Dongling Mountains). Two sampling methods are applied: the systematic-sampling method based on nested quadrates of five different sizes (10 × 10 cm, 25 × 25 cm, 50 × 50 cm, 1 × 1 m, and 2 × 2 m) in each 2 × 2 m grid within a 10 × 10 m plot (total 25 grids) and the microcoenose-sampling method (sampling with the minimum area quadrate at the center of the largest fragment in each of the 25 grids). The minimum area of sampling was determined based on the similarity-area curve, the coverage-area curve, and the importance- value-area curve through the systematicsampling. The appropriate sampling method and quadrate number were determined by analyzing the species diversity and evenness. We compared two sampling methods by assessing the species number at two different sites. Both the similarity- area curve and importance-value-area curve showed that the turnover point of sampling size occurred at 50 × 50 cm where the similarity and importance-value were closer to the actual. We concluded that a quadrate of 50 × 50 cm could be used as the minimum area of sampling. However, the systematic-sampling method was not suitable for analyzing the diversity of bryophytes. A viable alternative is the microcoenose-sampling method which allows to obtain sufficient information in terms of species richness and their distribution.

5

Pine forests of Zn-Pb post-mining areas of Southern Poland

84%

Grodzinska K., Szarek-Lukaszewska G., Godzik B.

Polish Botanical Journal

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2010

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tom 55

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nr 1

229-237

6

Transformations of coniferous forest vegetation as a result of forest management

84%

Laska G.

Seria Biologiczna. Uniwersytet im. Adama Mickiewicza w Poznaniu

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2004

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tom 69

7

Maps of real and potential natural forest vegetation of the Slowinski National Park

84%

Brzeg A., Jackowiak B., Kasprowicz M.

Seria Biologiczna. Uniwersytet im. Adama Mickiewicza w Poznaniu

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2004

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tom 69

8

Vegetation structure and ecological characteristics of forest of North Andaman Islands (India)

67%

Prasad P. R. C., Sringeswara A. N., Reddy C. S., Kumari P. V., Varalakshmi R. K., Raza S. H., Dutt C. B. S.

Biological Letters

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2009

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tom 46

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nr 2

9

The occurrence of invasive alien plant species in selected forest nature reserves in southern Poland as a conservation problem

67%

Chmura D., Sierka E.

Nature Conservation

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2006

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tom 62

3-11

10

Methods of estimating the elements of water balance in a forested catchment basin

67%

Osuch B., Gadek W., Homa A., Cebulska M., Szczepanek R., Hebda-Malocha A.

Journal of Water and Land Development

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2009

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nr 13a

11

Syntaxonomy and ecology of forest vegetation in the Stiavnicke vrchy Mts (Central Slovakia)

67%

Slezak M., Hegedusova K., Senko D.

Acta Societatis Botanicorum Poloniae

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2011

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tom 80

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nr 2

Vegetation of deciduous forests in the Štiavnické vrchy Mts (Central Slovakia) was studied using the standard Zürich-Montpellier approach. The numerical classification and ordination technique were applied to determine the main forest vegetation types and to find the responsible environmental drivers related to their distribution patterns, respectively. The data set including 198 relevés collected by authors in 1997-2009 and 185 relevés excerpted from literature was used to analysis. Numerical classification resulted in delimitation of fourteen vegetation types representing eleven associations with two variants and two communities within the Quercetea roboripetraeae and Querco-Fagetea classes. The major environmental gradients in variation of forest species composition were associated with moisture and nutrient content following the average Ellenberg indicator values. Along the moisture gradient, vegetation types were ordered from subxerophilous oak forests turn mesophilous mixed oak-hornbeam, beech and ravine forests to hygrophilous riparian alder forest. The results confirmed important role of soil nutrients and moisture by determination of forest vegetation in subcontinental part of Central Europe. Special attention was given to the discussion of floristical characteristics, site conditions and syntaxonomy.

12

Invasion of synanthropic plants into the forest vegetation of the Cedynia Landscape Park (NW Poland)

67%

Stepien E.

Biodiversity: Research and Conservation

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2009

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tom 15

13

The floristic composition of coniferous woodlands spontaneously developed on post-industrial waste sites in the Upper Silesia industrial region

67%

Wozniak G., Pasierbinski A., Rostanski A.

Seria Biologiczna. Uniwersytet im. Adama Mickiewicza w Poznaniu

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2004

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tom 69

14

Monitoring of Lesser Spotted Eagle [Aquila pomarina] in Belarussia

67%

Ivanovsky V. V., Tishechkin A. K.

The Ring

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1993

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tom 15

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nr 1-2

Ograniczanie wyników

Efficiency of different forest types in carbon storage depends on their internal structure

Changes in the silver fir forest vegetation 50 years after cessation of active management

The spread of Impatiens parviflora DC. in Central European oak forests - another stage of invasion?

Field-sampling methods for investigating ground-bryophyte populations in forest vegetation

Pine forests of Zn-Pb post-mining areas of Southern Poland

Transformations of coniferous forest vegetation as a result of forest management

Maps of real and potential natural forest vegetation of the Slowinski National Park

Vegetation structure and ecological characteristics of forest of North Andaman Islands (India)

The occurrence of invasive alien plant species in selected forest nature reserves in southern Poland as a conservation problem

Methods of estimating the elements of water balance in a forested catchment basin

Syntaxonomy and ecology of forest vegetation in the Stiavnicke vrchy Mts (Central Slovakia)

Invasion of synanthropic plants into the forest vegetation of the Cedynia Landscape Park (NW Poland)

The floristic composition of coniferous woodlands spontaneously developed on post-industrial waste sites in the Upper Silesia industrial region

Monitoring of Lesser Spotted Eagle [Aquila pomarina] in Belarussia